In the course of a year, Carl Safina went around the world and back again. During his travels he realizes that environmental problems are inherently entwined with humanity’s past and future, and nature’s cycles of renewal. Safina is a marine science professor at Stony Brook University and heads the Blue Ocean Institute. He talks with Living on Earth’s Steve Curwood about his new book “The View From Lazy Point, A Natural Year in an Unnatural World.”